#define  _CRT_SECURE_NO_WARNINGS  1
#include <stdio.h>

int main() 
{
    int x = 0, y = 0;
    scanf("%d", &x);
    if (x < 0)
    {
        y = 1;
    }
    else if (x == 0)
    {
        y = 0;
    }
    else
    {
        y = -1;
    }
    printf("%d", y);
    return 0;
}